Inventory is a necessary evil that every organization would have to maintain for various purposes. Optimum inventory management is the goal of every inventory planner. For maintaining the supply of material, spares and stock material etc in the organization, inventory control play an important role. Many healthcare organizations have group-buying contracts with distributors and manufacturers allowing them to purchase goods at reduced prices. To make these contracts, hospitals rely on effective inventory control systems. In pharmacy, Drug store management is based on the principle of inventory control. Here we have tried to study the inventory control system of a pharmacy store using ABC-XYZ-FSN analysis method.